Specifications

Chapter 3: SYNC I/O Hardware and Software 23
chapter 3
SYNC I/O Hardware and Software
SYNC I/O Front Panel
Controls and Displays
All SYNC I/O local controls are on its front
panel. The back panel is reserved for connectors
only. This section identifies each front panel
switch and display. For information on back
panel connectors and setup, see Chapter 2, “In-
stallation and Configuration.”
AC Mains Power Switch
When the SYNC I/O power switch is pressed in,
power is on; when the switch is out, power is off.
The LED ring around the power switch is orange
while the SYNC I/O is powering up, or while
firmware is being updated. When the SYNC I/O
is ready for use, the LED around the power
switch ring is green.
Clock Reference Switch and LEDs
This switch selects the SYNC I/O clock refer-
ence, as indicated by the Clock Reference LEDs.
Available clock reference inputs include
Video Ref, Video In, LTC, Digital, Pilot, Bi-
phase/Tach, Internal/VSO, and Loop Sync.
Loop Master Indicator
When lit, this LED indicates that the SYNC I/O
is the current Pro Tools Loop Master device.
Figure 1. SYNC I/O front panel
FRAME
RATE
LOCKED
SPEED CAL
REMOTE MODE
PULL UP
PULL DOWN
DF
SET
DOWN
UP
RUN/STOP
CLEAR
VIDEO REF
VIDEO IN
LTC
DIGITAL
PILOT
BI-PHASE/TACH
INTERNAL/VSO
LOOP SYNC
44.1 K
88.2 K
176.4 K
48 K
96 K
192 K
LTC
VITC
BI-PHASE
GENERATE
30
29.97
25
24
CLOCK
REFERENCE
POSITIONAL
REFERENCE
LOOP
MASTER
Power
Sample Rate
Clock Reference
Switch
Clock Reference
Loop
LEDs
Master
LEDs
Generator/Parameter
Controls
Time Code
Display
Switch
Positional Reference
LEDs
Positional
Drop Frame
Frame Rate
Switch
Reference
LED
LEDs
Frame
Rate
Status LEDs